Crank-case cleaner and humidifier



oct. 29, 1929. H, A, HAwEs 1,733,154

CRANK CASE CLEANER AND HUMIDTFIER Filed Oct. 5, 1927 NVENTOR A TTORNE x5 Patented Oct. 29, 1929 UNITED STATES HERBERT A. HAWES, OF COLDWATER, MICHIGAN CRANK-CASE CLEANER .AND HUMIDIFIER Application filed Dctober 5, 1927.

The object of the invention is to provide a simple and efficient attachment which will utilize vapor from the radiator of an automobile for charge moistening purposes and which will also create a partial vacuum in the crank case and withdraw any gasoline vapors therefrom and tend to retain the lubricant within the crank case and also on the engine pistons.

It is an object broadly to improve the humidifier in a gasoline engine also to improve the crank case construction whether it is done by a simple attachment or otherwise.

Further objects and objects pertaining to details and economies of construction delinitely appear from a detailed description to follow. I accomplish the objects of my invention by the devices clearly described in 2o the following specification.

rI`he invention is clearly pointed out and described in the claims.

A preferred embodiment of my invention is fully illustrated in the accompanying 23 drawing forming a part of this specification,

in which:

Fig. 1 is a detailed perspective view in broken section with hood and part of the frame broken away of an automobile embodying my invention with my improved attachment installed.

Fig. 2 is a vertical detail sectional view through the valve control casing and means partially in section and partially in full lines,

f same being a vertical section on a plane through connection 81.

Fig. 3 is an enlarged detail vertical sectional view through the intake connection to my device taken on the plane of line 3-3 of Fig. 1.

Fig. 4 is a detail view of my improvement partially in section showing an adapter for attaching the same to breather pipes or oil intake pipes of a smaller size than the device.

The parts will be identified by their numerals of reference which are the same in all views.

l is the engine, 2 is the intake manifold, 3 is the crank case, 4 is the breather pipe or oil intake of the usual form, 5 is the radiator,

Serial No. 224,157.

51 is the radiator cap which must tit airtight, 52 is the radiator overflow pipe. These are all in the usual form.

6 is the casing of my improved control valve structure having a diaphragm 62 thereacross and a downwardly projecting flange 621 which extends into and fits in the top of the breather pipe 4 after the breather pipe cap has been removed. A hard felt washer 61 is interposed to make a tight joint. A valve port 63 is in the center of the diaphragm 62 and is controlled preferably by a flat valve 64 having stem 641 which is surrounded by a spring 65 which is held in place by a prcjecting lug or pintle 66 in the top of the shell 6.

7 is an airtight connection pipe connected to the bottom end ofthe overflow pipe 52 and passed through the side of the breather 4 a point a little below the lower end of the flange 621. 71 is the elbow connection for pipe 7 and is provided with screen 72. v

v 8 is the suction pipe connected at 81 to th upper part of the valve casing 6 and extending to connection 82 where it connects to the intake manifold 2. This may be connected in connection with the exhaust pipe 9 of the vacuum feed system, if one is made use of on the engine.

I have shown the vacuum feed exhaust 9 in the usual form.

I have illustrated my device as applied to the usual construction of Ford car. The control valve casing 6 is put in place of the cap of the breather or oil intake pipe. On makes of car where the oil intake pipeis small, as at 40 in Fig. 4, I provide an adapter 60 which has a downwardly extending shank or tube 602 and is provided with a felt washer 601 for insertion into such smaller oil intake or breather pipe. The upper end of the adapter 60 is of the correct size and dimension to receive the control valve oase 6.

It will be observed at each stroke of the engine, the pipe 8, owing to its connection, will the upper part of the .radiator7 the said vapor Will be at once exhausted down into the crank case, passing just beneath the diaphragm G2. A considerable suction is created and a partial vacuum is created in the crank case. This has a tendency to draw all oil tending to escape back into the crank case thus avoiding a leakage and Waste ot oil in that manner and also tending to prevent the tendency of the oil to rush into the engine cylinder. Any slight amount oi gasoline or charge that leaks into the crank case will be at once vaporized and drawn past the valve 64 back into the engine intake manifold where it will be utilized in the charge. Thus there is a saving of any `gasoline that escapes past the piston into the crank case. 'Ihe oil is maintained in po sition and a very desirable amount tot moisf ture is (constantly delivered into the charge in vaporized condition. No heavy particles of Water can pase in `because the ,screen 72, in addition to iti function as a screen, breaks that up. Thin structure operates; very simply by the connection tothe cap on the breather pipe to create a partial vacuum in the crank case, the vapor delivering from `the radiator below the point of suction Where the vapor will be drawn together with the air and evaporated oil and `gasoline from the .crank case. This will be delivered centrally to the intake mani fold where it will be distributed to add a proper moisture `content to the entire charge thus 4Jgreatly improving the saine `and addi-ng to the etliciencyoi the engine and at the same time avoiding` accumulations of carbon.

I desire to claim my invention broadly and I also desire to claim the speciiic attachment by which the thing is accomplished as pointed out in the appended claims.

Having; thus described Amy invention what I claim as new and Adesire to secure by Letters Patent is:

l. The Acoz'nbiuiation not a `gasoline engine having,I the ueual construction of engine cylinder and manifold intake, crank case, breather pipe and radiator with overflow pipe, a connection from the lower end of the overilotv trom the radiator to lthe crank case at the breather pipe to Withdraw vapor and create partial vacuum, a control valve case with suit able flange and packing for attachment to the top o1" ythe breather pipe, an apertured diaphragm within the saine and a spring seated. check valve closing the aperture in the said diaphragm, a suction pipe connection from the control valve casing to the intake manifold ot the said engine all .enacting substane tially as described.

2. In a radiator Water cooled gasoline engine the combination having a suction connection from the intake manifold to the cranl case creatinga partial vacuum therein, a control valve chamber With a check valve therein interposed in the said suction connection, a connection from the enclosed air chamber of the radiator to the crank case delivering at a point in proximity to the said check valve, as speciiied.

In Witness whereof I have hereunto set my hand.

HERBERT A. HAWES..

EEO

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